| 合浦-北流断裂带西支合浦盆地段断裂活动性研究 |
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| 引用本文： | 王明明,周本刚,计凤桔,陈献程,陈国光.合浦-北流断裂带西支合浦盆地段断裂活动性研究[J].地震地质,2009,31(3):470. |
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| 作者姓名： | 王明明 周本刚 计凤桔 陈献程 陈国光 |
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| 作者单位： | 中国地震局地质研究所,北京,100029 |
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| 基金项目： | 国家科技支撑计划项目子专题"中国东部中强地震浅源划分与震级上限判定"，地震行业科研专项"核电厂地震安全问题研究" |
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| 摘 要： | 合浦-北流断裂起于北部湾海域,经合浦、博白后继续向NE延伸,断裂总长度为400余千米,断裂总体走向为40°～60°,分东、西2支,其中西支自南流江下游合浦盆地西南段一直向NE延伸。文中主要采用地质地貌、地震探测、钻探以及年代学方法,对合浦-北流断裂西支合浦盆地段的活动性进行判定,结果表明:合浦-北流断裂西支合浦盆地段最后1次活动应发生在早更新世中晚期,错距约为10m,断裂被中更新世中、晚期地层覆盖,即中更新世中、晚期以来,断裂的活动趋于减弱或停止
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| 关 键 词： | 合浦-北流断裂 合浦盆地 活动性 |
FAULT ACTIVITY ON THE HEPU BASIN SECTION OF THE HEPU-BEILIU FAULT |
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| WANG Ming-ming,ZHOU Ben-gang,JI Feng-ju,CHEN Xian-cheng,CHEN Guo-guang.FAULT ACTIVITY ON THE HEPU BASIN SECTION OF THE HEPU-BEILIU FAULT[J].Seismology and Geology,2009,31(3):470. |
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| Authors: | WANG Ming-ming ZHOU Ben-gang JI Feng-ju CHEN Xian-cheng CHEN Guo-guang |
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| Abstract: | Hepu-Beiliu Fault starts from Beibuwan sea area in the southwest,extends northeastwards continually though Hepu,Bobai. The total length of the fault exceeds 400 kilometers and the general strike of the fault is 40°～60°. The Hepu-Beiliu Fault comprises two branches-the east branch and the west branch. The west branch stretches from the southwest of the Hepu Basin lying in the lower reaches of the Nanliu River towards the northeast. This paper discusses the activity of the fault segment in the Hepu Basin in t |
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| Keywords: | Hepu-Beiliu Fault Hepu Basin activity |
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